July weather forecastFalmouth, MA
July
Weather in July
Standing at the pinnacle of summer, July in Falmouth, Massachusetts presents the warmest conditions of the year. The temperatures touch an annual high, with the hottest day falling in this month at 73.4°F (23°C). Despite the heightened heat, the high relative humidity embraces the town, adding a unique characteristic to the July weather. Frequently deemed the perfect time for water activities and beach fun, the sea reaches an agreeable warmth. The advent of August marks a subtle departure from the peak summer temperatures, heading towards a less intense yet still warm month.Temperature
In July, the average high-temperature marginally rises from a comfortable 65.5°F (18.6°C) in June to a warm 73.4°F (23°C). During the July nights, Falmouth's temperature maintains an average close to the daytime highs, settling at a comfortable 67.8°F (19.9°C).Humidity
The most humid month is July, with an average relative humidity of 83%.Rainfall
July through September are months with the least rain when the rain falls for 7.7 days and typically aggregates up to 0.31" (8mm) of rain.Snowfall
In Falmouth, snow does not fall in April through November.Ocean temperature
In Falmouth, the average seawater temperature in July is 66.2°F (19°C).Note: Swimming becomes less enjoyable for most at a surface water temperature of 66.2°F (19°C). As the temperature decreases below 69.8°F (21°C), breathing becomes increasingly difficult.
Daylight
The average length of the day in July is 14h and 50min.On the first day of the month, sunrise is at 5:12 am and sunset at 8:20 pm. On the last day of July, sunrise is at 5:36 am and sunset at 8:00 pm EDT.
Sunshine
The average sunshine in July is 10.4h.UV index
The months with the highest UV index are July and August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: In July, the maximum UV index of 6 transforms into these recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Falmouth, MA
- Average high temperature in July: 73.4°F
The warmest month (with the highest average high temperature) is August (73.9°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in July: 67.8°F
The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).
Average pressure in July
Falmouth, MA
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in July
Falmouth, MA
- Average wind speed in July: 10.2mph
The windiest month (with the highest average wind speed) is January (15.3mph).
The calmest months (with the lowest average wind speed) are July and August (10.2mph).
Average humidity in July
Falmouth, MA
- Average humidity in July: 83%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is November (74%).
Average rainfall in July
Falmouth, MA
- Average rainfall in July: 0.31"
The wettest month (with the highest rainfall) is October (0.71").
The driest months (with the least rainfall) are July, August and September (0.31").
Average rainfall days in July
Falmouth, MA
- Average rainfall days in July: 7.7 days
The month with the highest number of rainy days is July (7.7 days).
The month with the least rainy days is September (4.6 days).
Average snowfall in July
Falmouth, MA
- Average snowfall in July: 0"
The month with the highest snowfall is December (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in July
Falmouth, MA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in July
Falmouth, MA
- Average sea temperature in July: 66.2°F
The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).
Average daylight in July /
Average sunshine in July
Falmouth, MA
- Average daylight in July: 14h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in July: 10h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in July
Falmouth, MA
- Average sunshine days in July: 21.3 days
The month with the most sunshine days is September (23.9 days).
The month with the least sunshine days is February (20.8 days).
Average UV index in July
Falmouth, MA
- Average UV index in July: 6
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in July
Falmouth, MA
- Average cloud cover in July: 30
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in July
Falmouth, MA
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





